我剛開始使用二維數組,但似乎無法弄清楚如何獲得每列的平均值。我正在使用for循環讓用戶輸入數據(學生成績),然後使用for循環顯示用戶輸入的信息。但是在顯示信息之後,我想要顯示每列的平均值。我應該怎麼做才能得到每列的平均值?如何獲得二維數組中列的平均值
這是我至今
static void Main(string[] args)
{
double[,] grades = new double[2, 3];
double result;
for (int i = 0; i < 2; i++)
{
for (int j = 0; j < 3; j++)
{
Console.Write("Enter Grade " + (j + 1) + " For Group" + (i + 1) + ": ==>> ");
if (double.TryParse(Console.ReadLine(), out result)) grades[i, j] = result;
else
{
Console.WriteLine("*** INVALID GRADE ENTERED. PLEASE REENTER.");
}
}
}
for (int row = 0; row < 1; row++)
{
Console.WriteLine();
Console.Write(" Group " + (row + 1) + ": ");
Console.WriteLine(" Group " + (row + 2) + ": ");
Console.Write("=========== ===========");
for (int col = 0; col < 3; col++)
{
//String.Format("{0,-10} | {1,-10} | {2,5}",
//make pring for execise 2 Console.Write(string.Format("{0,-5}", grades[row, col]));
Console.WriteLine();
Console.Write(string.Format("{0,-9}", ""));
Console.Write(string.Format("{0,-20}",grades[0, col]));
Console.Write(grades[1,col]);
}
Console.WriteLine();
Console.WriteLine("=========== ===========");
}
Console.WriteLine("\n\npress any key to exit...");
Console.ReadKey();
//print it for exercise 1 myArr[o, column]; myArr[ , column]
}`
你爲什麼硬編碼這個值:'等級[0,山口]'和'等級[1,col]',不應該將0和1替換爲'row'? – npinti 2015-04-06 07:03:37
錯誤的解決方案總共... – Shubhojit 2015-04-06 07:15:56
等級[0,col]和等級[1,col]用於打印第一列和第二列值 – Clapper66 2015-04-06 07:21:48